CN113099558A - Electric blanket based on human body sensible temperature and nonlinear temperature adjustment method thereof - Google Patents

Electric blanket based on human body sensible temperature and nonlinear temperature adjustment method thereof Download PDF

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CN113099558A
CN113099558A CN202110406205.XA CN202110406205A CN113099558A CN 113099558 A CN113099558 A CN 113099558A CN 202110406205 A CN202110406205 A CN 202110406205A CN 113099558 A CN113099558 A CN 113099558A
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temperature
human body
eyes
user
fruit
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CN113099558B (en
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刘海军
许明贤
李双源
康强
吕广华
王健
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Hefei University of Technology
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Hefei University of Technology
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0272—For heating of fabrics
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles

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  • Textile Engineering (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The invention discloses an electric blanket based on human body temperature sensing and a nonlinear temperature adjusting method thereof. The nonlinear temperature adjusting method comprises the following steps: collecting the ambient temperature Ta and the ambient humidity RH of the electric blanket, and calculating the current actual body sensing temperature T of the human bodyFruit of Chinese wolfberryAccording to a target human body sensible temperature TEyes of a userAnd Ta and RH calculate the output power P of the heating resistance wire of the electric blanket. Judgment of TFruit of Chinese wolfberryWhether or not to equal TEyes of a userIf so, the heating resistance wire is driven to stop outputting, otherwise, the output is stopped at TFruit of Chinese wolfberryLess than TEyes of a userWhen the electric heater is driven, the heating resistance wire is driven to keep outputting according to P until TFruit of Chinese wolfberryIs equal to TEyes of a userUntil the end; at TFruit of Chinese wolfberryGreater than TEyes of a userAnd driving the heating resistance wire to stop outputting. The invention is according to T in the working processEyes of a userIs adjusted taking into account airInfluence of humidity on human body feeling temperature is calculated by calculating current time TFruit of Chinese wolfberryControlling the heating resistance wire to further work until T is reachedEyes of a userThereby being capable of making human body feel more comfortable in a wet and cold environment.

Description

Electric blanket based on human body sensible temperature and nonlinear temperature adjustment method thereof
Technical Field
The invention relates to a temperature adjusting method of an electric blanket and the electric blanket adopting the temperature adjusting method, in particular to a nonlinear temperature adjusting method of the electric blanket based on human body feeling temperature and the electric blanket adopting the nonlinear temperature adjusting method.
Background
The electric blanket is a contact type electric heating device, and heat is generated through a resistance heating element in the electric blanket. The target temperature of the existing electric blanket is generally constant in the using process, or the existing electric blanket is divided into a plurality of fixed temperature gears, the power-on switch of the electric blanket is controlled by a temperature controller, and when the electric blanket reaches the set temperature due to the heat generated by a heating element, the power is automatically cut off, so that the temperature is always kept near the temperature value of the target temperature.
Because the ambient temperature is different from the sensible temperature of a human body, the temperature sensed by the skin of the human body is different due to different humidity under the same ambient temperature. When the external humidity changes, the traditional electric blanket still keeps a fixed temperature, and because the range of the optimal temperature sensed by a human body is narrow, when the external humidity is large, the temperature sensed by the human body is relatively low, and the human body feels wet and cold, at the moment, the corresponding ambient temperature needs to be increased to offset the influence caused by the increase of the humidity, so that the human body is in the state of most comfortable body sensing.
In addition, the sensible temperature of a human body varies from person to person, and the season, race, sex, age, physical conditions of the human body and the current mood of the human body all affect the sensible temperature of the human body to a certain extent. Especially for the people with poor body temperature regulation function, such as the old, the weak, the sick and the young, the corresponding environment temperature needs to be increased to compensate the body feeling temperature of the people.
Disclosure of Invention
In order to solve the technical problem of how to improve the corresponding ambient temperature to offset the influence caused by the increase of the humidity so as to enable a person to be in the most comfortable state of body feeling, the invention provides a nonlinear temperature adjusting method of an electric blanket based on the body feeling temperature and the electric blanket adopting the nonlinear temperature adjusting method.
The invention is realized by adopting the following technical scheme: a nonlinear temperature adjustment method of an electric blanket based on human body temperature sensing comprises the following steps:
step S1, collecting the ambient temperature Ta and the ambient humidity RH of the electric blanket;
step S2, calculating the current actual body sensing temperature T of the human body according to the environment temperature Ta and the environment humidity RHFruit of Chinese wolfberry；
Step S3, according to a target human body sensible temperature TEyes of a userCalculating the output power of a heating resistance wire of the electric blanket according to the ambient temperature Ta and the ambient humidity RH;
step S4 of determining the actual sensible temperature TFruit of Chinese wolfberryWhether the temperature is equal to the target human body sensible temperature TEyes of a user；
Step S5, when the actual body sensing temperature T isFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userWhen the temperature is higher than the set temperature, the heating resistance wire is driven to stop outputting;
step S6, when the actual body sensing temperature T isFruit of Chinese wolfberryIs not equal to the target human body sensible temperature TEyes of a userThe method comprises the following steps: at the actual body sensing temperature TFruit of Chinese wolfberryLess than the target human body sensible temperature TEyes of a userAnd then, the heating resistance wire is driven to keep outputting according to the output power until the actual body sensing temperature TFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userUntil the end; at the actual body sensing temperature TFruit of Chinese wolfberryGreater than the target human body sensible temperature TEyes of a userAnd driving the heating resistance wire to stop outputting.
The electric blanket is adjusted according to the actual human body sensible temperature in the working process, the influence of air humidity on the human body sensible temperature is considered, the actual body sensible temperature at the current moment is calculated, and the heating resistance wire is controlled to further work to compensate the actual human body sensible temperature, so that the human body can feel more comfortable in a wet and cold environment.
As a further improvement of the above scheme, the actual sensible temperature TFruit of Chinese wolfberryThe calculation method comprises the following steps:
step S21, calculating humidity versus actual sensible temperature T according to the environment temperature Ta and the environment humidity RHFruit of Chinese wolfberryCorrection value of (T)RH：
Figure BDA0003022452680000021
Step S22, according to the correction value TRHCalculating the actual body-sensing temperature TFruit of Chinese wolfberry：TFruit of Chinese wolfberry＝1.07Ta-0.2TRH；
As a further improvement of the above scheme, the actual sensible temperature TFruit of Chinese wolfberryThe calculation method comprises the following steps:
Tfruit of Chinese wolfberry＝0.7664Ta-0.0008693RH2-0.0002449Ta 2RH+0.00006059TaRH2+0.00001008Ta 3RH+4。
As a further improvement of the above solution, the method for calculating the output power includes the steps of:
step S31, calculating the target human body sensible temperature TEyes of a userAnd said actual sensible temperature TFruit of Chinese wolfberryA difference of (d);
step S32, compensating the difference to obtain the output power P: a is P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)+P0Or P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)2+P0Wherein a is1For power regulation factor, P0Is the minimum heating power.
As a further improvement of the scheme, the target human body sensible temperature TEyes of a userThe input is realized by a direct slide potentiometer.
As a further improvement of the scheme, the temperature adjusting range T of the straight sliding potentiometerRegulating deviceComprises the following steps:
Figure BDA0003022452680000031
wherein: i isThe conversion value of the position of the sliding block in the straight sliding potentiometer and the human body sensible temperature is obtained, wherein a is the ratio of the human body sensible temperature adjustment amount when the sliding block is positioned at two sides of the straight sliding potentiometer to the human body sensible temperature adjustment amount when the sliding block is positioned in the middle, b is the average optimal human body sensible temperature, and c is the adjustment amount of the human body sensible temperature when the sliding block is positioned in the middle of the straight sliding potentiometer.
As a further improvement of the scheme, the temperature adjusting range T of the direct-sliding potentiometer is definedRegulating deviceMaximum value of (A) is THeight ofMinimum value of TIs low inWhen said T isHeight ofAnd TIs low inWhen the information is known, the information is transmitted to the mobile terminal,
Figure BDA0003022452680000032
i＝Tis low in+(THeight of-TIs low in)p，
Figure BDA0003022452680000033
Wherein, the value range of a is
Figure BDA0003022452680000034
R is a resistance value corresponding to the actual position of the slide block, RGeneral assemblyThe total resistance value of the direct-sliding potentiometer.
As a further improvement of the scheme, a, b and c are modified to set the target human body sensible temperature TEyes of a userThe adjustment curve of (2); the adjustment curve inputs different target human body feeling temperatures T at different timeEyes of a userCompensating the difference value of the actual human body sensible temperature change in the sleeping process; and/or; maximum value THeight ofAnd a minimum value TIs low inThrough the target human body sensible temperature TEyes of a userSetting:
Figure BDA0003022452680000035
Figure BDA0003022452680000036
wherein, range is the range of human body sensible temperature which can be adjusted by the straight sliding potentiometer arranged at the moment.
The invention also discloses a nonlinear temperature-adjusting electric blanket based on the body feeling temperature, which comprises:
a blanket body;
the heating resistance wire is arranged in the blanket body;
it is characterized in that the electric blanket further comprises:
temperature sensor for real-time detection of ambient temperature Ta；
A humidity sensor for detecting ambient humidity RH in real time;
a direct-sliding potentiometer for inputting a target human body sensible temperature TEyes of a user(ii) a And
and the control component drives the heating resistance wires to operate based on a nonlinear temperature adjustment method of the electric blanket for sensing the temperature by a human body.
As a further improvement of the above scheme, the control assembly is realized by adopting a single chip microcomputer; the output port of the singlechip is connected with a relay; the relay controls the operation of the heating resistance wire by the on-off state of the output port of the singlechip.
As a further improvement of the scheme, when the output port of the single chip microcomputer is at a high level, the relay is closed, the heating resistance wire operates, and when the output port of the single chip microcomputer is at a low level, the relay is disconnected, and the heating resistance wire stops operating.
As a further improvement of the above scheme, a bluetooth module is embedded in the single chip microcomputer and is connected with a mobile terminal through the bluetooth module; the mobile terminal modifies the a, the b and the c to set the target human body feeling temperature TEyes of a userThe adjustment curve of (2).
As a further improvement of the above solution, the electric blanket further comprises:
the display screen is used for displaying various parameters;
a control panel, on which the temperature T for inputting the target human body is setEyes of a userFor setting the target human body sensible temperature TEyes of a userA factory reset button for resetting to a factory value; the direct-sliding potentiometer is also arranged on the control surfaceOn the board.
The invention has the beneficial effects that:
1. the electric blanket is adjusted according to the actual human body feeling temperature in the working process, the influence of air humidity on the human body feeling temperature is considered, the actual body feeling temperature at the current moment is calculated, and the heating resistance wire is controlled to further work to reach the target human body feeling temperature, so that the human body can feel more comfortable in a wet and cold environment;
2. due to the fact that the physical quality of each person is different, even under the same environmental temperature and humidity, the target human body sensible temperature of each person is different, and the electric blanket can rapidly have different target human body sensible temperatures of different people by the aid of the method. The optimal body feeling temperature which is most suitable for the user is stored through the optimal personal setting button, and the user does not need to slowly search for the optimal target body feeling temperature which is most suitable for the user, so that the optimal body feeling temperature which is most suitable for the user can be quickly reached by the electric blanket, the use comfort of the user body is improved, and the user has good experience;
3. through a factory setting restoring button, parameters input by each item can be restored to default values, and the default values are average optimal values;
4. when a person just falls asleep at night, the body is still in an active state, metabolism is fast, and the environmental temperature can be slightly lower; in the morning, the body is not active for a long time, the metabolism is slow, and the required environment temperature is higher; therefore, the actual human body sensible temperature change in the sleeping process is compensated through the human body sensible temperature change set by the mobile terminal.
Drawings
Fig. 1 is a flowchart of a non-linear temperature adjustment method for an electric blanket based on human body sensible temperature according to embodiment 1 of the present invention.
FIG. 2 is a diagram showing an actual sensible temperature T adopted in the nonlinear temperature adjustment method in FIG. 1Fruit of Chinese wolfberryThe body sensible temperature values at different physical temperatures are shown to have a difference diagram.
FIG. 3 is a view similar to FIG. 2 showing another example of sensed temperature TFruit of Chinese wolfberryIs shown inThe body sensible temperature values at different physical temperatures have difference graphs.
Fig. 4 is a schematic structural diagram of a control panel in the non-linear temperature-regulating electric blanket based on human body temperature sensed by embodiment 2 of the present invention.
Fig. 5 is a flowchart of the operation of controlling the heating resistance wires by the single chip microcomputer in the nonlinear temperature-regulating electric blanket based on the body temperature sensed by the human body according to embodiment 2 of the present invention.
Fig. 6 is a graph showing a relationship between a target human body sensible temperature and a slider position in the non-linear temperature-regulating electric blanket based on the human body sensible temperature according to embodiment 3 of the present invention.
In the figure: 1-display screen, 2-straight slide potentiometer, 3-personal best button, 4-factory recovery button, and 5-switch button.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment discloses a nonlinear temperature adjustment method of an electric blanket based on human body feeling temperature, and with reference to fig. 1, the nonlinear temperature adjustment method comprises the following steps:
and step S1, collecting the ambient temperature Ta and the ambient humidity RH of the electric blanket.
When the ambient temperature Ta and the ambient humidity RH of the electric blanket are collected, various manners may be adopted, such as a temperature sensor for collecting the ambient temperature Ta of the electric blanket in real time, and a humidity sensor for collecting the ambient humidity RH of the electric blanket in real time.
Step S2, calculating the current actual sensible temperature T of the human body according to the environmental temperature Ta and the environmental humidity RHFruit of Chinese wolfberry。
Since each person has a different physical quality, the target human body feeling temperature of each person is different even under the same environmental temperature and humidity.
By different calculation methods, different physical temperaturesThere will be a difference in the temperature value sensed by the human body in the temperature (i.e. the ambient temperature), as shown in fig. 2, which is the T calculated by the commonly used calculation methodFruit of Chinese wolfberry：
TFruit of Chinese wolfberry＝0.7664Ta-0.0008693RH2-0.0002449Ta 2RH+0.00006059TaRH2+0.00001008Ta 3RH+4。
Actual sensible temperature TFruit of Chinese wolfberryEmpirical values published by the weather bureau can be used.
In this embodiment, the actual body-sensory temperature TFruit of Chinese wolfberryThe calculation method of (2) is as follows:
step S21, calculating humidity versus actual sensible temperature T according to environment temperature Ta and environment humidity RHFruit of Chinese wolfberryCorrection value of (T)RH：
Figure BDA0003022452680000061
Step S22, based on the correction value TRHCalculating the actual sensible temperature TFruit of Chinese wolfberry：TFruit of Chinese wolfberry＝1.07Ta-0.2TRH。
Referring to fig. 3, the actual sensible temperature T is adopted in the embodimentFruit of Chinese wolfberryThe body sensible temperature values under different physical temperatures are slightly different from the body sensible temperature values obtained by the calculation of the method. In fig. 2 and 3, the ambient temperature Ta and the actual sensible temperature T are shown when the ambient humidity RH is 100%Fruit of Chinese wolfberrySchematic diagram of the relationship between them.
Step S3, according to a target human body sensible temperature TEyes of a userAnd calculating the output power of the heating resistance wire of the electric blanket according to the ambient temperature Ta and the ambient humidity RH.
The method for calculating the output power can adopt the following steps:
step S31, firstly, calculating the body sensing temperature T of the target human bodyEyes of a userAnd the actual sensible temperature TFruit of Chinese wolfberryA difference of (d);
and step S32, compensating the difference to obtain the output power P.
Wherein, P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)+P0Or P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)2+P0Wherein a is1For adjusting the power factor, the heating power is adjusted if a1Has a large value and is at a specific temperature difference (target human body sensible temperature T)Eyes of a userGreater than the actual body-sensing temperature TFruit of Chinese wolfberry) High heating power, high heating speed, P0The minimum heating power is not limited, and can be designed according to practical situations, in this embodiment, P0Is 2W.
Step S4, determining the actual sensible temperature TFruit of Chinese wolfberryWhether the temperature is equal to the target human body sensible temperature TEyes of a user。
Step S5, when the actual body sensing temperature T isFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userAnd driving the heating resistance wire to stop outputting.
Step S6, when the actual body sensing temperature T isFruit of Chinese wolfberryIs not equal to the target human body sensible temperature TEyes of a userThe method comprises the following steps: at the actual body sensing temperature TFruit of Chinese wolfberryLess than the target human body sensible temperature TEyes of a userAnd then, the heating resistance wire is driven to keep outputting according to the output power until the actual body sensing temperature TFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userUntil the end; at the actual body sensing temperature TFruit of Chinese wolfberryGreater than the target human body sensible temperature TEyes of a userAnd driving the heating resistance wire to stop outputting.
The driving mode for controlling the work of the heating resistance wire is not limited, the work of the heating resistance wire can be controlled by adopting a single chip microcomputer, and the work of the heating resistance wire can also be controlled by adopting a plc.
Example 2
The embodiment introduces a non-linear temperature-regulating electric blanket based on human body temperature sensing, and the electric blanket adopts the non-linear temperature-regulating method of the embodiment 1. Therefore, the electric blanket can offset the influence caused by the humidity increase by improving the corresponding ambient temperature, so that the human body feels the most comfortable.
The electric blanket comprises a temperature sensor, a humidity sensor, a blanket body, a heating resistance wire and a control panel, wherein the control panel controls the heating resistance wire in the blanket body to work, please refer to fig. 4, the control panel is provided with a display screen 1, a personal optimum button 3, a factory recovery button 4, a switch button 5 and a direct-sliding potentiometer 2, and a single chip microcomputer is arranged in the control panel.
The personal optimal setting button 3 is used for inputting the target human body feeling temperature TEyes of a user. Through the best setting button of individual, saved the best human body feeling temperature that is most suitable for oneself, do not need the user to slowly grope the best human body feeling temperature of oneself, consequently can let the electric blanket reach the best human body feeling temperature that is most suitable for oneself fast, improve user's body comfort in use, let the user have good experience.
Firstly, the temperature sensor and the humidity sensor are utilized to convert external temperature and humidity information analog quantity into corresponding digital signals, the single chip microcomputer is respectively communicated with the temperature sensor and the humidity sensor to read the numerical values of temperature and humidity, and the actual human body feeling temperature T at the current moment is calculatedFruit of Chinese wolfberry，TFruit of Chinese wolfberryExpressed as: t isFruit of Chinese wolfberry＝1.07Ta-0.2TRHWherein, TaIs ambient temperature, TRHCorrected value of humidity to sensible temperature, TRHExpressed as:
Figure BDA0003022452680000081
wherein RH is the humidity value in the air.
Actual human body sensible temperature T at current momentFruit of Chinese wolfberryThe calculation formula is an empirical formula, as the sensible temperature varies from person to person, not only the humidity can influence the sensible temperature, but also the season, race, gender, age, body conditions and mood at that time are different, the sensible temperature can be influenced to different degrees, and a user can reasonably select a proper target human body sensible temperature according to the self condition. Therefore, a human body sensible temperature adjusting device adopting the straight sliding potentiometer 2 is required to be added.
The singlechip reads the analog value of the port 2 of the direct-sliding potentiometer, then converts the analog value into a digital value, and the direct-sliding potentiometer is used for reading the analog valueThe resistance value corresponding to the actual position of the slider of the device 2 obtains the actual position information corresponding to the slider, expressed by the parameter p,
Figure BDA0003022452680000082
wherein R is the resistance value corresponding to the actual position of the slide block, RGeneral assemblyThe total resistance value of the direct-sliding potentiometer. When the slide block is arranged at two ends of the straight sliding potentiometer, the p values respectively correspond to 0 and 1, and when the slide block is arranged at the middle position of the straight sliding potentiometer, the p value corresponds to 0.5. After the single chip microcomputer obtains the position of the sliding block on the straight sliding potentiometer 2, the conversion value i of the human body sensible temperature is calculated by utilizing the numerical value, wherein the i is expressed as: i ═ TIs low in+(THeight of-TIs low in) p, wherein TIs low inIs the minimum value of the adjustment range of the human body sensible temperature of the slide block on the straight slide potentiometer 2, THeight ofThe maximum value of the human body sensible temperature adjusting range of the sliding block on the straight sliding potentiometer 2 is shown.
Maximum value THeight ofAnd a minimum value TIs low inThe sensible temperature between the two is non-linear adjustment, the sensible temperature amount of the slider moving on the straight sliding potentiometer 2 for the same distance adjustment is different, and the maximum value T isHeight ofAnd a minimum value TIs low inThe regulation range between is defined as TRegulating device，TRegulating deviceExpressed as:
Figure BDA0003022452680000091
wherein, a is the proportion of the human body sensible temperature adjustment quantity when the sliding block is positioned at two sides of the straight sliding potentiometer 2 and the human body sensible temperature adjustment quantity when the sliding block is positioned in the middle, b is the average optimal human body sensible temperature, and c is the adjustment quantity of the human body sensible temperature when the sliding block is positioned in the middle of the straight sliding potentiometer. When a, THeight ofAnd TIs low inWhen the information is known, the information is transmitted to the mobile terminal,
Figure BDA0003022452680000092
because c is a non-negative parameter, the value range of a is as follows:
Figure BDA0003022452680000093
the actual human body feeling temperature T at the current moment can be determined by the aboveFruit of Chinese wolfberryThe singlechip determines the body temperature TEyes of a userAnd then controlling the output power P of the heating resistance wire, wherein P is expressed as: a is P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)+P0Wherein a is1For power regulation factor, P0Is the minimum heating power.
Referring to fig. 5, the single chip microcomputer reads temperature and humidity information at intervals of time T in a circulating manner, and calculates the actual human body feeling temperature T at the current momentFruit of Chinese wolfberryActual body sensible temperature TFruit of Chinese wolfberryTemperature T sensed by target human bodyEyes of a userCalculating the actual heating power P after the difference is made, and when the actual human body sensible temperature T isFruit of Chinese wolfberryTemperature T sensed by target human bodyEyes of a userWhen the two signals are equal, the single chip microcomputer stops outputting the heating instruction. In this embodiment, the time interval t is selected to be 1s, P0Is 2W. The specific heating working process comprises the following steps: initializing after the electric blanket is started, reading corresponding temperature and humidity values through a temperature sensor and a humidity sensor, and calculating the actual human body feeling temperature T at the current momentFruit of Chinese wolfberryAnd is compared with the set target value target human body sensible temperature TEyes of a userComparison, TFruit of Chinese wolfberryReach the target value TEyes of a userThe heating is stopped and the cyclic heating is continued if the heating is not reached.
The single chip microcomputer controls the work of the heating resistance wire by a pulse width modulation method, the output signal of the single chip microcomputer is a digital signal, the single chip microcomputer controls the switching state of the digital port, and the heating power of the heating resistance wire is controlled by the ratio of the time occupied by the switching state. The output port of the singlechip is connected with a relay, and the relay controls the heating circuit by the on-off state of the output port of the singlechip. When the output port of the singlechip is at high level, the relay is closed, the heating circuit works, and when the output port of the singlechip is at low level, the relay is disconnected, and heating is stopped. In this embodiment, the heating resistance wire may be made of constantan, constantan alloy, zinc cupronickel, nickel-chromium alloy, copper-nickel alloy, or the like.
In order to input the values of a, b and c, a Bluetooth or Wifi module can be embedded in the single chip microcomputer, the single chip microcomputer is connected with mobile terminals such as a mobile phone through Bluetooth or Wifi signals, an advanced mode is set in the application of a mobile terminal platform, the specific values of the parameters of a, b and c can be checked and modified after the mobile terminal platform enters the advanced mode, and therefore a target human body feeling temperature adjustment curve more suitable for a user can be obtained.
The method comprises the steps of setting a human body feeling temperature change curve every night in the application of the mobile terminal, and inputting different target human body feeling temperatures at different times by taking time as an x axis. When a person just falls asleep at night, the body is still in an active state, metabolism is fast, and the environmental temperature can be slightly lower; in the morning, the body is inactive for a long time, metabolism is slow, and the required ambient temperature is higher. Different target human body temperature sensing temperatures are input at different time through a target human body temperature sensing adjustment curve set by the mobile terminal so as to compensate the difference value of the actual human body temperature sensing change in the sleeping process.
The mobile terminal application can comprise a voice control module, and the voice control module controls the switch of the switch button 5 and inputs the body sensing temperature of the target human body. The single chip microcomputer reads the input of the temperature and humidity sensor and the straight sliding potentiometer 2, carries out calculation processing, displays related information on the display screen 1, and controls the work of the heating module. After the heating module works, the values read by the temperature and humidity sensors change, and are updated in the next reading process. Meanwhile, the single chip microcomputer and the mobile terminal display the states of the single chip microcomputer and the mobile terminal on the mobile terminal through Bluetooth or Wifi signals, and the mobile terminal can also set related parameters of programs in the single chip microcomputer to control the working state of the electric blanket.
Example 3
Referring to fig. 6, the present embodiment introduces a target human body sensible temperature T based on embodiment 2Eyes of a userThe maximum value of the body sensible temperature is THeight ofAnd minimum value of TIs low inAt 23.6 deg.C and 16.4 deg.C, respectively, a is 0.1852, b is 20, and c is 0.2. It can be seen that when the slider is in the middle range, the human body sensible temperature change caused by the sliding of the slider on the straight sliding potentiometer is small, and at the moment, an operator can conveniently select the optimal human body sensible temperature value suitable for himself. Andat the same time, the set human body feeling temperature TEyes of a userThe numerical value is fed back to the display screen 1 through an output port of the singlechip, and an operator can accurately remember the optimal body temperature T of the operator through the feedbackEyes of a userThe value of (c).
When the target body feeling temperature T suitable for the individual is adjustedEyes of a userAfter the value of (1), T in the present embodimentEyes of a userAt 21.3 ℃, the personal best setting button 3 is pressed, and at this time, the adjusted target somatosensory temperature value is assigned to the parameter b to replace the previous default value. Corresponding change of maximum value THeight ofAnd minimum value of TIs low inDetermined by the following formula:
Figure BDA0003022452680000111
wherein, the range is the range of human body sensible temperature which can be adjusted by the arranged straight sliding potentiometer. In the example, the range is selected to be 3.6 ℃, and the maximum value of the new human body feeling temperature is determined to be T by solvingHeight ofAnd minimum value of TIs low in17.7 ℃ and 24.9 ℃ respectively. And recalculating the conversion value i between the position of the slide block in the straight slide potentiometer 2 and the temperature sensed by the human body. When the same person uses the electric blanket, the target human body sensible temperature is slightly adjusted again according to the actual state of the person, such as the situations of pajamas, thin and thick quilts and the like, and the adopted reference is the optimal body sensible temperature set before the person.
When the person using the electric blanket changes, the factory reset button 4 is pressed, and at the moment, the optimal human body sensible temperature value b and the maximum human body sensible temperature value T are setHeight ofAnd minimum value of TIs low inIn this embodiment, b is selected to be 20.5, the maximum T height of the human somatosensory temperature is 24.1 ℃ and the minimum T height is 16.9 ℃.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A nonlinear temperature adjusting method of an electric blanket based on human body temperature sensing is characterized by comprising the following steps: which comprises the following steps:
step S1, collecting the ambient temperature Ta and the ambient humidity RH of the electric blanket;
step S2, calculating the current actual body sensing temperature T of the human body according to the environment temperature Ta and the environment humidity RHFruit of Chinese wolfberry；
Step S3, according to a target human body sensible temperature TEyes of a userCalculating the output power of a heating resistance wire of the electric blanket according to the ambient temperature Ta and the ambient humidity RH;
step S4 of determining the actual sensible temperature TFruit of Chinese wolfberryWhether the temperature is equal to the target human body sensible temperature TEyes of a user；
Step S5, when the actual body sensing temperature T isFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userWhen the temperature is higher than the set temperature, the heating resistance wire is driven to stop outputting;
step S6, when the actual body sensing temperature T isFruit of Chinese wolfberryIs not equal to the target human body sensible temperature TEyes of a userThe method comprises the following steps: at the actual body sensing temperature TFruit of Chinese wolfberryLess than the target human body sensible temperature TEyes of a userAnd then, the heating resistance wire is driven to keep outputting according to the output power until the actual body sensing temperature TFruit of Chinese wolfberryEqual to the target human body sensible temperature TEyes of a userUntil the end; at the actual body sensing temperature TFruit of Chinese wolfberryGreater than the target human body sensible temperature TEyes of a userAnd driving the heating resistance wire to stop outputting.
2. The non-linear temperature regulating method of the electric blanket based on the body sensible temperature as claimed in claim 1, wherein the actual sensible temperature T isFruit of Chinese wolfberryThe calculation method comprises the following steps:
step S21, calculating humidity versus actual sensible temperature T according to the environment temperature Ta and the environment humidity RHFruit of Chinese wolfberryCorrection value of (T)RH：
Figure FDA0003022452670000011
Step S22, according to the correction value TRHCalculating the actual body-sensing temperature TFruit of Chinese wolfberry：TFruit of Chinese wolfberry＝1.07Ta-0.2TRH；
Or, the actual body sensing temperature TFruit of Chinese wolfberryThe calculation method comprises the following steps:
Tfruit of Chinese wolfberry＝0.7664Ta-0.0008693RH2-0.0002449Ta 2RH+0.00006059TaRH2+0.00001008Ta 3RH+4。
3. The non-linear temperature regulating method of the electric blanket based on the temperature sensed by the human body according to claim 1, wherein the calculating method of the output power comprises the steps of:
step S31, calculating the target human body sensible temperature TEyes of a userAnd said actual sensible temperature TFruit of Chinese wolfberryA difference of (d);
step S32, compensating the difference to obtain the output power P: a is P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)+P0Or P ═ a1(TEyes of a user-TFruit of Chinese wolfberry)2+P0Wherein a is1For power regulation factor, P0Is the minimum heating power.
4. The non-linear temperature regulating method of the electric blanket based on the human body sensible temperature as claimed in claim 1, wherein the target human body sensible temperature T isEyes of a userThe input is realized through a direct sliding potentiometer of which the temperature adjusting range TRegulating deviceComprises the following steps:
Figure FDA0003022452670000021
wherein: i is a conversion value of the position of the sliding block in the straight sliding potentiometer and the human body sensible temperature, a is the ratio of the human body sensible temperature adjustment amount when the sliding block is positioned at two sides of the straight sliding potentiometer to the human body sensible temperature adjustment amount when the sliding block is positioned in the middle, b is the average optimal human body sensible temperature, and c is the human body sensible temperature when the sliding block is positioned in the middle of the straight sliding potentiometerThe amount of temperature adjustment.
5. The non-linear temperature adjusting method of the electric blanket based on the temperature sensed by the human body as claimed in claim 4, wherein a temperature adjusting range T of the direct-sliding potentiometer is definedRegulating deviceMaximum value of (A) is THeight ofMinimum value of TIs low inWhen said T isHeight ofAnd TIs low inWhen the information is known, the information is transmitted to the mobile terminal,
Figure FDA0003022452670000022
i＝Tis low in+(THeight of-TIs low in)p，
Figure FDA0003022452670000023
Wherein, the value range of a is
Figure FDA0003022452670000024
R is a resistance value corresponding to the actual position of the slide block, RGeneral assemblyThe total resistance value of the direct-sliding potentiometer.
6. The method for non-linearly adjusting the temperature of an electric blanket according to claim 5, wherein the target human body sensible temperature T is set by modifying a, b and cEyes of a userThe adjustment curve of (2); the adjustment curve inputs different target human body feeling temperatures T at different timeEyes of a userCompensating the difference value of the actual human body sensible temperature change in the sleeping process;
and/or;
maximum value THeight ofAnd a minimum value TIs low inThrough the target human body sensible temperature TEyes of a userSetting:
Figure FDA0003022452670000025
Figure FDA0003022452670000026
wherein, range is the range of human body sensible temperature which can be adjusted by the straight sliding potentiometer arranged at the moment.
7. A non-linear thermoregulation electric blanket based on human body temperature sensing comprises:
a blanket body;
the heating resistance wire is arranged in the blanket body;
it is characterized in that the electric blanket further comprises:
temperature sensor for real-time detection of ambient temperature Ta；
A humidity sensor for detecting ambient humidity RH in real time;
a direct-sliding potentiometer for inputting a target human body sensible temperature TEyes of a user(ii) a And
a control component, which drives the heating resistance wire to operate according to the nonlinear temperature adjusting method of the electric blanket based on the human body sensible temperature, as claimed in any one of claims 1 to 6.
8. The non-linear thermoregulation electric blanket based on human body sensible temperature of claim 7, wherein the control component is realized by adopting a single chip microcomputer; the output port of the singlechip is connected with a relay; the relay controls the operation of the heating resistance wire by the on-off state of the output port of the singlechip.
9. The non-linear thermoregulation electric blanket based on human body sensible temperature of claim 8, wherein a Bluetooth module is embedded in the single chip microcomputer and is connected with a mobile terminal through the Bluetooth module; the mobile terminal modifies the a, the b and the c to set the target human body feeling temperature TEyes of a userThe adjustment curve of (2).
10. The non-linear thermoregulation electric blanket based on human body sensible temperature of claim 7, further comprising:
the display screen is used for displaying various parameters;
a control panel, on which the body feeling temperature is inputtedTEyes of a userFor setting the target human body sensible temperature TEyes of a userA factory reset button for resetting to a factory value; the straight sliding potentiometer is also arranged on the control panel.
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